ABB MU 80, Product Manual

Page: 88 / 102

8.2 Replacing SMB board
WARNING
See safety instructions for batteries, Safety risks during handling of batteries on
page 27 .
Required equipment
Note
There are different variants of SMB units and batteries. The variant with the
3-pole battery contact has longer lifetime for the battery.
It is important that the SMB unit uses the correct battery. Make sure to order the
correct spare parts. Do not replace the battery contact!
Note Equipment
See Spare parts and exploded views on
page 96 .
SMB board
Removing the SMB board
Use this procedure to remove the SMB board in the SMB box.
Information Action
DANGER
Turn off all:
• electric power supply
• hydraulic pressure supply
• air pressure supply
to the robot, before entering the robot working area.
1
ELECTROSTATIC DISCHARGE (ESD)
Before handling the unit, see The unit is sensitive
to ESD on page 24 .
2
Open the cover on the SMB box.
CAUTION
Clean cover from metal residues before opening.
Metal residues can cause shortage on the boards
which can result in hazardous failures.
3
Disconnect the cables. 4
Keep the toothed washers. Remove the screws holding the plate. 5
Pull out the plate. 6
Continues on next page
88 Product manual - Motor Units and Gear Units
3HAC040148-001 Revision: K
© Copyright 2011 -2018 ABB. All rights reserved.
8 Repair
8.2 Replacing SMB board